Q.

If x>1 for 2x2y=4e2x-2y, then 1+loge2x2 dydx equal

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a

xloge 2x+loge2x 

b

xloge 2x-loge2x 

c

loge 2x 

d

xloge 2x

answer is A.

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Detailed Solution

2x2y=4e2x-2y2y loge 2x= loge 4+2x-2y2y loge 2x=2 loge2+2x-2y y loge2x= loge 2+x-y y=x+ loge 21+ loge 2xdydx=1+loge 2x-x+loge21x1+ loge 2x2 1+loge2x2dydx=xloge 2x-loge2x

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